package cn.tom.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import org.springframework.boot.web.servlet.MultipartConfigFactory;
import org.springframework.cache.CacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.util.unit.DataSize;

import javax.servlet.MultipartConfigElement;
import java.time.Duration;

@Configuration
public class RedisTemplateConfig {

    /**
     *  设置图片上传的大小
     * */
    @Bean
    public MultipartConfigElement multipartConfigElement(){
        MultipartConfigFactory facto = new MultipartConfigFactory();
        facto.setMaxFileSize(DataSize.parse("1024KB"));
        facto.setMaxRequestSize(DataSize.parse("102400KB"));
        return facto.createMultipartConfig();
    }

    /**
     * JSON 序列化 与 反序列化
    * */
    @Bean
    public RedisTemplate<String,Object> redisTemplate(LettuceConnectionFactory factory) {
        System.out.println("RedisTemplate。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。");
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        RedisSerializer<String> redisSerializer = new StringRedisSerializer();
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer =
                new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
// 把类的私有字段 放开
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
//om.setDateFormat( new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
//om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        template.setConnectionFactory(factory);
//json数据带类的名称
        om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance,
                ObjectMapper.DefaultTyping.NON_FINAL);
//这条语句很关键, 反序列化时, 需要知道 Java 对象类名称
        jackson2JsonRedisSerializer.setObjectMapper(om);
//key序列化方式
        template.setKeySerializer(redisSerializer);
//value序列化
        template.setValueSerializer(jackson2JsonRedisSerializer);
// Hash序列化
        template.setHashKeySerializer(jackson2JsonRedisSerializer);
        template.setHashValueSerializer(jackson2JsonRedisSerializer);

        // 上面key  value 的序列化  针对 String，Zset
        // 其他还在测
        return template;
    }



    @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory) {
        RedisSerializer<String> redisSerializer = new StringRedisSerializer();
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

        //解决查询缓存转换异常的问题
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        //om.setDateFormat( new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
        //om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);

        //json数据带类的名称
        om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance,
                ObjectMapper.DefaultTyping.NON_FINAL);
        //这条语句很关键, 反序列化时, 需要知道 Java 对象类名称

        jackson2JsonRedisSerializer.setObjectMapper(om);
        // 配置序列化（解决乱码的问题）,过期时间120秒
        RedisCacheConfiguration config =
                RedisCacheConfiguration.defaultCacheConfig()
                        .entryTtl(Duration.ofSeconds(120))
                        .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                        .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                    //    .disableCachingNullValues()
                ;

        RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
                .cacheDefaults(config)
                .build();
        return cacheManager;
    }
}
